摘要
用自制的固载杂多酸催化剂PW12/C复相催化合成增塑剂二甘醇二苯甲酸酯(DEDB),通过试验确定了合成DEDB的适宜工艺条件为:苯甲酸30g,二甘醇10.4ml,催化剂用量为苯甲酸质量的0.7%,带水剂N2流量200ml/min,反应温度180℃,反应时间3h,在此条件下酯化率可达98.5%。重复试验表明该催化剂具有良好的稳定性。
Supported heteropolyacid catalyst PW 12 /C has been prepared and used in heterogenous catalytic synthesis of DBDE It was observed that catalyst showed high catalytic activity and stability The most suitable conditions for the reaction are as follows:benzoic acid 30 g,diethylene glycol 10 4 ml,water carrier N 2200 ml/min,catalyst 2 1 g,reaction time 3 h,reaction temperature 180 ℃。
出处
《石油化工》
EI
CAS
CSCD
北大核心
1998年第8期564-566,共3页
Petrochemical Technology
关键词
固体酸
催化合成
DEDB
增塑剂
heteropolyacid,esterification,plasticizer,diethylene glycol dibenzoate